Sikaflex 552 is a low VOC, high performance, elastic, gap-filling, one-part, silane-terminated polymer structural adhesive that moisture-cures to form a durable elastomer. Sikaflex 552 does not contain any isocyanates or solvents. Sikaflex 552 is manufactured in accordance with the ISO 9001/ISO 14001 quality assurance system and the Responsible Care Program. Sikaflex 552 white high strength structural assembly adhesive is AAMA 805.2-94 certified and bonds well to a wide variety of substrates without having the need to apply a pre-treatment. Sika 552 is resistant to UV radiation, aging and weathering, is capable of withstanding high dynamic stresses, has a very low VOC content, is silicone, PVC and isocyanate-free, has a high recovery, is elastic and emits a low odor. Sikaflex 552 is ideal for structural joints that are subjected to dynamic stresses. Sikaflex 552 bonds very well to a wide variety of substrates and is suitable for making permanent high-strength elastic adhesive seals. Suitable substrate materials include wood, metals, metal primers and paint coatings (two-part systems), ceramic materials, plastics and glass. Seek manufacturer’s advice before using on transparent materials that are prone to stress cracking.
paint coatings (two-part systems)
Avoid application below 41°F and above 95°F as improper surface properties could result.
Since the material is moisture cured, provide sufficient exposure to air.
Do not apply over cured silicones or in the presence of curing silicones or urethanes.
Avoid contact with excessive amounts of alcohols or alcohol-containing mixtures, as some temporary initial surface tackiness may result.